/*
 * TeleStax, Open Source Cloud Communications  Copyright 2012.
 * and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.mobicents.protocols.ss7.cap.service.gprs.primitive;

import java.io.IOException;

import org.mobicents.protocols.asn.AsnException;
import org.mobicents.protocols.asn.AsnInputStream;
import org.mobicents.protocols.asn.AsnOutputStream;
import org.mobicents.protocols.asn.Tag;
import org.mobicents.protocols.ss7.cap.api.CAPException;
import org.mobicents.protocols.ss7.cap.api.CAPParsingComponentException;
import org.mobicents.protocols.ss7.cap.api.CAPParsingComponentExceptionReason;
import org.mobicents.protocols.ss7.cap.api.service.gprs.primitive.VolumeIfTariffSwitch;
import org.mobicents.protocols.ss7.cap.primitives.SequenceBase;

/**
 * 
 * @author Lasith Waruna Perera
 * 
 */
public class VolumeIfTariffSwitchImpl  extends SequenceBase implements VolumeIfTariffSwitch{
	
	public static final int _ID_volumeSinceLastTariffSwitch = 0;
	public static final int _ID_volumeTariffSwitchInterval = 1;

	public static final int _ID_VolumeIfTariffSwitch = 1;
	
	private long volumeSinceLastTariffSwitch;
	private Long volumeTariffSwitchInterval;
	
	public VolumeIfTariffSwitchImpl() {
		super("VolumeIfTariffSwitch");
	}
	
	public VolumeIfTariffSwitchImpl(
			long volumeSinceLastTariffSwitch, Long volumeTariffSwitchInterval) {
		super("VolumeIfTariffSwitch");
		this.volumeSinceLastTariffSwitch = volumeSinceLastTariffSwitch;
		this.volumeTariffSwitchInterval = volumeTariffSwitchInterval;
	}

	public long getVolumeSinceLastTariffSwitch(){
		return this.volumeSinceLastTariffSwitch;
	}

	public Long getVolumeTariffSwitchInterval(){
		return this.volumeTariffSwitchInterval;
	}
	
	@Override
	public int getTag() throws CAPException {
		return _ID_VolumeIfTariffSwitch;
	}

	@Override
	public int getTagClass() {
		return Tag.CLASS_CONTEXT_SPECIFIC;
	}
	
	@Override
	protected void _decode(AsnInputStream asnIS, int length)
			throws CAPParsingComponentException, IOException, AsnException {
	
		boolean isVolumeSinceLastTariffSwitchIncluded = false;
		
		this.volumeSinceLastTariffSwitch = -1L;
		this.volumeTariffSwitchInterval = null;

		AsnInputStream ais = asnIS.readSequenceStreamData(length);
		while (true) {
			if (ais.available() == 0)
				break;

			int tag = ais.readTag();

			if (ais.getTagClass() == Tag.CLASS_CONTEXT_SPECIFIC) {
				switch (tag) {
				case _ID_volumeSinceLastTariffSwitch:
					if (!ais.isTagPrimitive())
						throw new CAPParsingComponentException("Error while decoding " + _PrimitiveName + ".volumeSinceLastTariffSwitch: Parameter is primitive",
								CAPParsingComponentExceptionReason.MistypedParameter);
					this.volumeSinceLastTariffSwitch = ais.readInteger();
					isVolumeSinceLastTariffSwitchIncluded = true;
					break;
				case _ID_volumeTariffSwitchInterval:
					if (!ais.isTagPrimitive())
						throw new CAPParsingComponentException("Error while decoding " + _PrimitiveName + ".volumeTariffSwitchInterval: Parameter is primitive",
								CAPParsingComponentExceptionReason.MistypedParameter);
					this.volumeTariffSwitchInterval = ais.readInteger();
					break;
				default:
					ais.advanceElement();
					break;
				}
			} else {
				ais.advanceElement();
			}
		}

		if (!isVolumeSinceLastTariffSwitchIncluded)
			throw new CAPParsingComponentException("Error while decoding " + _PrimitiveName + ": volumeSinceLastTariffSwitch is mandatory but not found",
					CAPParsingComponentExceptionReason.MistypedParameter);
	
	}
	
	@Override
	public void encodeData(AsnOutputStream asnOs) throws CAPException {
		try {
			asnOs.writeInteger(Tag.CLASS_CONTEXT_SPECIFIC, _ID_volumeSinceLastTariffSwitch, this.volumeSinceLastTariffSwitch);
			
			if (this.volumeTariffSwitchInterval != null)
				asnOs.writeInteger(Tag.CLASS_CONTEXT_SPECIFIC, _ID_volumeTariffSwitchInterval, this.volumeTariffSwitchInterval.longValue());
				
		}catch (IOException e) {
			throw new CAPException("IOException when encoding " + _PrimitiveName + ": " + e.getMessage(), e);
		} catch (AsnException e) {
			throw new CAPException("AsnException when encoding " + _PrimitiveName + ": " + e.getMessage(), e);
		}
	}
	

	@Override
	public String toString() {
		StringBuilder sb = new StringBuilder();
		sb.append(_PrimitiveName + " [");

		sb.append("volumeSinceLastTariffSwitch=");
		sb.append(this.volumeSinceLastTariffSwitch);
		sb.append(", ");
		
		if (this.volumeTariffSwitchInterval != null) {
			sb.append("volumeTariffSwitchInterval=");
			sb.append(this.volumeTariffSwitchInterval);
		}

		sb.append("]");

		return sb.toString();
	}

}
